It's an unidentified male and it's on here somewhere but it's at an early time. From what I recall it's some time between 3.45am-3.55am. I used to wonder whether it referred to JB turning up to meet them. Mike Tesko also used to claim that this officer (or another officer first on the scene) requested fingerprints to be taken, in the room where the possible sighting took place. I cannot recall whether there was a document in question that was produced to evidence that.
I believe there is some confusion here. Lookout has said that "an unidentified male" was referred to. She is correct. However, the "UM" to which she referred, wasn't seen in an upstairs window. He was the "hunched man" seen walking away at some point in the proceedings. I believe the "Was it?"?"It was" sighting has become morphed into "an unidentified male".